lalafer8184 lalafer8184
  • 19-05-2017
  • Biology
contestada

An atom contains 70 protons, 70 electrons, and 99 neutrons. what is the mass number?

Respuesta :

EcapGang
EcapGang EcapGang
  • 19-05-2017
how bout you try adding the numbers up or adding the two 70s then subtracting the 99
Answer Link

Otras preguntas

Write 84000 in standard form
How many 25cm in diameter tins can fit in a 600x500 mm baking tray
For every 5 baskets kevon shoots , he misses three. If Kevon takes 25 shots, how many shots does he miss
Which are rights mentioned early in the declaration of independence?
13 143 as a unit fraction
Angle PQR and angle SQR form a linear pair. Find the sum of their measures.
The sum of two numbers is 5.036. one number has a 4 in the tenths place and 7 in the thousandths place. The other number has a 1 in the ones place and an 2 in t
what is the difference between the 8th multiple of 8 and the 5th multiple of 8
what happens to infrared radiation when it comes to contact wih a shiny suface
A bedroom is 5.2 meters wide. find its width in feet